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What is the Least Common Multiple of 61705 and 61719?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 61705 and 61719 is 544052985.

LCM(61705,61719) = 544052985

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Least Common Multiple of 61705 and 61719 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61705 and 61719, than apply into the LCM equation.

GCF(61705,61719) = 7
LCM(61705,61719) = ( 61705 × 61719) / 7
LCM(61705,61719) = 3808370895 / 7
LCM(61705,61719) = 544052985

Least Common Multiple (LCM) of 61705 and 61719 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61705 and 61719. First we will calculate the prime factors of 61705 and 61719.

Prime Factorization of 61705

Prime factors of 61705 are 5, 7, 41, 43. Prime factorization of 61705 in exponential form is:

61705 = 51 × 71 × 411 × 431

Prime Factorization of 61719

Prime factors of 61719 are 3, 7, 2939. Prime factorization of 61719 in exponential form is:

61719 = 31 × 71 × 29391

Now multiplying the highest exponent prime factors to calculate the LCM of 61705 and 61719.

LCM(61705,61719) = 51 × 71 × 411 × 431 × 31 × 29391
LCM(61705,61719) = 544052985